Study on Absorption of Cu2+ and Cd2+ in Wastewater by Modified Bentonite

Xiu Yan Zhou; Fei Huang

doi:10.4028/www.scientific.net/AMR.779-780.1238

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 779-780Study on Absorption of Cu2+ and Cd2+ in Wastewater...

Study on Absorption of Cu²⁺ and Cd²⁺ in Wastewater by Modified Bentonite

Abstract:

In this study, the adsorption of Cu²⁺ and Cd²⁺ in wastewater by modified bentonite was investigated. The effect of adsorption adsorbent dosage, pH, time and temperature conditions, etc. on the adsorption was also studied. The results showed that adsorption of Cu²⁺ and Cd²⁺ in wastewater by modified bentonite increased with the increase of the adsorbent. When dosing quantity was 0.6g, the adsorption rate on Cu²⁺ and Cd²⁺ can reach respectively 92.4% and 87.3%. In 30 minutes, the adsorption rate on Cu²⁺ and Cd²⁺ can achieve above 93.3% and above 91.8% respectively closing to adsorption balance. When pH of the system is between 6-7, adsorption is to equal balance, the adsorption rate on Cu²⁺ and Cd²⁺ can reach above 92%. When the temperature is 30°C, absorption rate on Cu²⁺ and Cd²⁺ in wastewater by modified bentonite is 93.6% and 91.8%, the adsorption effect is the best.

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Periodical:

Advanced Materials Research (Volumes 779-780)

Pages:

1238-1241

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.779-780.1238

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Online since:

September 2013

Authors:

Xiu Yan Zhou, Fei Huang

Keywords:

Adsorption, Adsorption Rate, Heavy Metal, Modified Bentonite

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